The true cause of death of the famous Australian actor Julian McMahon, Dr. Doom in Marvel and Fox's 'Fantastic 4', has come to light.

Julian McMahon, the beloved actor known for his roles in 'Nip/Tuck', 'Charmed', and 'Fantastic Four', has passed away at the age of 56 due to lung metastasis linked to head and neck cancer. His wife shares a touching tribute.

Julian McMahon's cause of death has been confirmed.